"key pieces of information" is correct and usable in written English. You can use it when referring to information that is important or essential to a given situation, or information that provides a crucial or strategic advantage. For example, "The witness was able to provide investigators with key pieces of information that helped solve the case.".
Furthermore, a minority believed that key pieces of information necessary for informed decision making, such as delayed benefits of cancer screening and the need to consider life expectancy to realize a benefit from screening, were important.
The presence of such marketing informs potential patients about treatment options, tourism opportunities, and other key pieces of information that assist with decision-making.
"These are the key pieces of information," Professor Bruccoli said.
But as I researched the book, I discovered two key pieces of information that changed that.
But key pieces of information about Hitler's wedding and final hours are missing.
Even before the procedure began, staff members failed to record key pieces of information, federal investigators found.
Cowley says the success of fusion relies on two key pieces of information, which are absent from the Lockheed publicity.
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Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia